Lathe



J. BURT Aug. 28, 1923.

5 Sheets-Sheet 2 LATHE Filed lMay s, 1921 l r-g-g Patented Aug., 2S, i923.

'v tasse?? Fries.;

JOHN 'BUR'.r, orV NABBERTH,TPNNNSYLVANIA, AssrsNor. To wrLLrAiu s nLLa'ns a COMPANY, INCQRPORATED, or PniLAnnLrnrA, PENNSYLVANIA, A oonroaarion y ork PENNSYLVANIA.

Application filed IvIay 9,

To @ZZ whomz't may'conccrw.'

I Be it known that l, JOHN BURT, a citizen ot' the United States, residing ratllarherth, county of Montgomery, and tate of Pennsylvania, have invented a new and usel'ul improvement in Lathes, of which thefollowing is a full, clear, and exact description, reference being hadfto' the accompanying drawings, which formfa part of this specification. Y -fv My invention relates particularly to lathes for turning the rims Vof locomotive driving Wheels and carfwheels or machines of similar character, in which the feeding motion of the tool or-toolsis actuated from a crank or from a shalt having a rocking or oscillating motion ahout'its axis. Such lathes require a power feed motion to ad-y vance the toolsuhstantially parallel with the aXis of the lathe and sometimes also require a power cross-feed' at. a right angle with the longitudinal feed.

The object of my invention is to provide a simple and inexpensive device, by which both feeding movements may he actuated Jfrom a.single operating means, such as a connecting rod from a crank or from a lever ACn on a rock shaft. I also construct itso that it may he readf ily added or omitted as required. These results I accomplish by using parts of the longitudinal feeding mechanism to operate the cross-feed. Another olojecty of my invention is to provide power actuated `crossieed mechanism which can readily he applied to lathes of the typev shown now on the Ymarket, and which mechanism is adapted to be adjusted to compensatevfor-the'adjustment of the tool carriage. V j 'f Fig. 1 is a cross-section of a lathe showing one form of my improved tool 'feeding mechanism with the parts in one position.

Fig. 2 is a similar view showing the parts in a different position.

F ig. 3 is aplan view of the tool carriageV and the operating mechanism on a llarger scale. Y

Fig. 4C Vis an end elevation of the device f shown in Fig. 3.

Fig. 5 is a side view thereof. In thesedrawings, the reference character A designates the hed of a lathe and B the face plate on the head stock (not shown) which is rotated in the usual manner.

LA'IHE.

`1921. serialNo. AGP/,sea`

a saddle Varranged to be moved-longitudinally along the hed A and 10 i are bolts for securingthe saddle in its adjustedY position.

lvlounted for transverse, adjustment on the saddle@ is a toolV housing D which is s'ecured in its adjusted position to the saddle hy bolts 11, the arrangement ot thesaddleV and tool carriage being such thattheymay be adjusted longitudinally and 1 transversely to position the tool with relation to the por tionot the work piece to be machined. .E is

a cross motion slide guide secured to the tool housing D, and F is a slide arranged to loe moved ,transversely along-the slide guide E. The slide F has 'uide on which is slidablymounted a slide .br to which-the toolis secured. 12 is a feed screw mountedon the slide- F and isconnected to theV slide Gr by means of the. usual nut carried by said slide to he moved.

Jou-rnaled on'the screw y12 is a ratchet lever Lwhich comprises two plates, one on each Vside` ot a ratchet wheel 13., 14 is a 'pawl carried by the plates forming Ythe lever la, which` is arranged to rotate the screw 1 2 Vstep hystep .when the ratchet lever Lis oscillated. 15 is vahand wheel carried hy the the ratchet wheel step hy `step when the lever I is oscillated VVto feed the .slideF and `tool transversely. Y

lH is a rock shaft j ournaled in hearings on the frameA and which is vihrated inthe usual manner for actuating the tool feed mechanism. Keyedxto `the shaftHin such a mannerV that it ca nf'he adjusted alono' the Shaft withal@ Saddle o is alam i.; ik is a connect-ing ..rod connected to they lever I andthe ratchet -levjeigliy means of ball and socket connections,` 'ascle'arlygshown Pivoted to a bracket onthe slideE isa lever-. N, one end of which is connected-to- Vthe ratchet lever L by means of a link-"1W rllhe other end'otthe lever vN is connected to the ratchet lever 'P by means of a rodQ;

t d to the levers N and L SOClQ't GOll'l/-lvCilOllS lifivith relation to the lever lwlien the .lioiisiiigD is adjustedtransversely with relation to the work. T l'inl M is. also prof i `vided with a ifi-umherVV of holcsior the pin foi" connecting the linlt M tothe lever llY to coin iensate'V for the shift gg oit the lever L caused b the shitting of he carriage D when. a sting the lcairiage transversely l with relation to the work. ln lfigs. 1' and 2, the toolslide G' slightly from the tool slide shown other figures ottlie dra-wings.

ln all ofthe iigui-'es the cross slideA F is below the longitudinalslide- @,'but it will readily be appreciated by those familiar with the art that the varrangement may readily be reversed.

'ln the rembodiment shown, the lathe is adapted for 'facing the hubs ot large wheels, such as locomotive derivi-ng wheels, andior turning the periphery offsuch Wheels;

"When it is desiredato turn the periphery of the Wheel, the parts are positioned as shown in Fig. 1, the pawl 18 being thrown out ot action and the pawl 14 into action so that the tool will be fed longitudinally; 'lt it is desired to tace the rim or" the wheel, the parts may be left in the same positions differs in the l with: the exception oi' the pawls, and in this case pawlj18 'is thrown into action and the pawl 1d is thrown out'v of action.Y Y

lli'hen facing the hubs of wheels, the carriage B is shiftedtransversely as shown in 40 Fig. 2 and the link M' is connected to the j lever N' to give theA best driving connection between the levers N and L. in this case, pawll 1.8 isr thrown into action and pawl 1li Vis-tl`irown'outof action, to feed the tool V4,5 along the tace Yoit' the hub'.

The advantages of my invention result from the4 provision ot toolifeeding mechanismV for feeding the tool either longitudi- Anail-y ortr ansversely in'connection with an @adjustable carriage which is ,arranged to be shifted transversely for machining articles such 'as ylocomotive driving wheels f .in Lvwhich both feeding devices' are actuated from a; single operatingmeans. Y 55r A further advantage results from the provision of' simplelever mechanism for actuating'both feeds which are adapted'to be actuated from the same roclrshatt, and Awhich leverf mechanism is arranged to ber V adjusted toV compensate Yfor the shifting or" the'carriage, aswell Vas a lever mechanism which can readily be applied or removed.

Having nowfully described my invention, what l c aim and desire to protect by LettersY Patent is n f a longitudinally movable slide, a separate .feed mechanism for eachslide, actuating de vices for each feed mechanism, actuating means arranged to becA` i'ven from the lathe, connection between the actuating Y'means Vand one of the actuating devices adapted to permit adjust-ment of the housing, and connections between the actuatingV devices.

A lathe havingv atransverselly adjust-v able housing, a transversely movableslide, a longitudinally movableslide, a separate toed mechanism for each slide, actuating devices for each Vfeed mechanism, actuat! ing means arranged to be`A drivent'rom the` lathe, a connection Vbetween the/actuating means and one Tof the actuating devices adapted to permit adjustment of' the hous'v ing, and adjustable connections betweenfthe actuating devices.V

' 8.Y A lathe having a transversely adjust-Y able housing, a transversely movable slide, a longitudinally movable slide, a separate feed mechanism for each slide,y actuating de.- vices ior eacli feedv mechanism, adjustable lever connections'betweenthe actuating de-v vices, actuating means arranged to= be ldriven* from the lathe, and an adjustable connection between the actuating meansY and the actuating devices; Y .Y Y

4L. A lathe havingV a transversely adjustable housing, a transversely movableslide, a longitudinally n-iovableA slide, a separate feed mechanism for each slide, actuatingv devices for each feedv mechanisin,-adjust able connections between the actuating de-A vices, rock shaft, and a connection .beltween the rock shaft and one of the actuating devices. y

' 5. A lathey having a transversely and lon-4 gitudinally adjustable housing, a trans= versely movable slide and ai'longitudially movable slideV on the carriage, a feedscrew for' eachslide, a separate ratchet mechanism foreach screw, lever connections between said ratchet mechanisms, a rock shaft, and aetuating'connections between the Vrock shaft and the ratchet lever connections.

G. A lathe having a transverselyv adjust-V able housing, a slide movablymounted onV the carriage, ya second slide mounted; on the t first slide and arranged to. moveat right angles to the first slide, a freed screw for each slide, a ratchet wheel on each screw, a YpaWl lever forV each ratchet wheel, a pawl onA eachratchet lever, Va lever-pivotally connected to each ratchet lever, a roclr shaft, and an actuating connection between the Vrock shaft and one off the pawl levers.

7. A lathe hav-ing a transversely adjustable housing, a slide inovably mounted' on the carriage, a secondy slide mounted on the Afirst slide and'arranged to-,move at right angle to the first slide, a feed screw for each llO slide, a ratchet Wheel on eachscrevv, apavvl lever for each ratchet Wheel, a pavvl on each ratchet lever, a pivotedlever, a link connection to each pawl lever and the pivoted Vlever one of said links bein'y ad'ustable to vary the length thereof, a rock shaft, and an actuating connection between' the rock Vshaft and the pawl levers.

8. A lathe having a transversely adjustable housing, a slide movably mounted on the carriage, a second slide mounted on the lever, one of said links being adjustableito A vary the length thereoia rock shaft,and an adjustable actuating VVconnection between the roc-k shaftand the pavvl levers. v

49. A lathe having a transversely movable slide, a longitudinally movable slide, a separate feed mechanism for each slide, actuatf ing devices for each'feed mechanism, adjustable connections between the actuating-.dey vices, va rock shaft, and a connection between' the roch shaft and one of the actuating devices. y Y

In testimony of'vvhich invention, l have hereunto set my hand, at Philadelphia, on this 6th day of May, 1921.

JOHN BURT. 

